Microsoft to delete Hotmail Outlook Express support
Come June 30th, Microsoft will be shutting off Hotmail support for Outlook Express because the company is switching the protocol used by Hotmail from DAV to a newer protocol called DeltaSynch. So, If you use Outlook Express to manage your Hotmail account, Microsoft wants you to download Windows Live Mail instead. It isn’t intended to inconvenience Outlook Express users. It’s just that Outlook Express uses outdated protocols. Windows Live Mail is available as a free download, and it supports POP3 and IMAP as well as DeltaSynch. The new protocol does a better job of handling large email inboxes, as Microsoft said, since it allows email client just to download changes since the last synch instead of grabbing every single header, as DAV does. While it’s possible to add DeltaSynch support to Outlook Express, Microsoft decided it would be easier to push its new email client. The choice in you, you could always just access your webmail services like Hotmail through the web interface.
[via LiveSide]


